Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Florence Francine Messi, RN

Registered Nurse in Gaithersburg, MD · enumerated 2023.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1598469348

Verified

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Registry record

Entity type Individual (Type 1)

Name Florence Francine Messi

Credential RN

Sex Female

Practice address Gaithersburg, MD, 20882

Phone (301) 300-5189

Enumeration date Mar 27, 2023

Last updated in NPPES Mar 27, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163WA2000X Administrator Registered Nurse Nursing Service Providers · License RN2346129 (MA) Secondary

163WX0200X Oncology Registered Nurse Nursing Service Providers · License RN2346129 (MA) Secondary

163WH0200X Home Health Registered Nurse Nursing Service Providers · License RN2346129 (MA) Secondary

163WI0500X Infusion Therapy Registered Nurse Nursing Service Providers · License RN2346129 (MA) Secondary

163W00000X Registered Nurse Nursing Service Providers · License RN2346129 (MA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Florence Messi?

The National Provider Identifier (NPI) for Florence Messi is 1598469348, a Type 1 (individual) record in the CMS NPPES registry.

Where does Florence Messi practice?

The practice location on file with NPPES is in Gaithersburg, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-27.